Casio fx-991EX User Manual

fx-991EX Quick Start Guide 41
To solve, press p and use the arrow keys (RE) to toggle
between solutions.
The solutions are shown in natural display format. For decimal
approximations, press n.
To change the values in the system of equations without
changing the type of equation or system, press C.
The fx-991EX also solves inconsistent systems, both
independent and dependent. Enter the displayed inconsistent
and independent system
Press p to see the solution.
To change the type of equation or system size, press i and select from the on-screen menus.
EQUATION/FUNC

Casio fx-991EX Specifications

General

Type	Scientific
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black, White
Battery type	LR44
Power source	Battery/Solar
Number of batteries supported	1
Digits	16 digits
Display type	LCD
Display resolution	192 x 63 pixels
Display number of lines	2 lines
Display number of characters	16
Storage media type	-
Operation	552
Conversion between	Decimal, Fraction, Percent
Convert angles from degrees to	Gradian, Radian
Random number/integer generator	Yes

Weight and Dimensions

Depth	165.5 mm
Width	77 mm
Height	11.1 mm
Weight	90 g